Possibly save 4 hours of your time: If you are programmer who has started a blog, you may want to display your source code. Then you may try to find plugins to help support better display of your code. However I find most plugins are hard to use and not intuitive.
WordPress does have original support for displaying code with colors based on language type.
public void DisplayWordpressCodeWithColor()
{
}
For supported language, please see list in the following link:
Michael Chu Blog 